I had this idea / pet project once where I did exactly this for email. Emails would immediately bounce with payment link and explanation. If you paid you get credit on a ledger per email address. Only then the mail goes through.
replyYou can also integrate it in clients by adding payment/reward claim headers.
Bill Gates already had this idea. All efforts to change email were already documented 25 years ago. The biggest changes are it is more centralized these days, SPF/DKIM/DMARC, JMAP innovation, oh... and one more thing! It is HUGE!! HTML email is the default...
replyYeah I remember this from "The Road Ahead" which I chanced upon one time in the 90s. I thought it was a silly idea.
replyScammers (and spammers) always got $1! That's why there's a lot of the scam ads on google, fb, apple.
replySo the paywall email firewall will not work as desired.
Not many email attacks are worth an entire dollar. It would be very very effective at reducing spam. And too effective at reducing everything else.
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